glslang/hlsl/hlslGrammar.h

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//
// Copyright (C) 2016-2018 Google, Inc.
// Copyright (C) 2016 LunarG, Inc.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of Google, Inc., nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
#ifndef HLSLGRAMMAR_H_
#define HLSLGRAMMAR_H_
#include "hlslParseHelper.h"
#include "hlslOpMap.h"
#include "hlslTokenStream.h"
namespace glslang {
class TFunctionDeclarator;
// Should just be the grammar aspect of HLSL.
// Described in more detail in hlslGrammar.cpp.
class HlslGrammar : public HlslTokenStream {
public:
HlslGrammar(HlslScanContext& scanner, HlslParseContext& parseContext)
: HlslTokenStream(scanner), parseContext(parseContext), intermediate(parseContext.intermediate),
typeIdentifiers(false), unitNode(nullptr) { }
virtual ~HlslGrammar() { }
bool parse();
protected:
HlslGrammar();
HlslGrammar& operator=(const HlslGrammar&);
void expected(const char*);
void unimplemented(const char*);
bool acceptIdentifier(HlslToken&);
bool acceptCompilationUnit();
bool acceptDeclarationList(TIntermNode*&);
bool acceptDeclaration(TIntermNode*&);
bool acceptControlDeclaration(TIntermNode*& node);
bool acceptSamplerDeclarationDX9(TType&);
bool acceptSamplerState();
bool acceptFullySpecifiedType(TType&, const TAttributes&);
bool acceptFullySpecifiedType(TType&, TIntermNode*& nodeList, const TAttributes&, bool forbidDeclarators = false);
bool acceptQualifier(TQualifier&);
bool acceptLayoutQualifierList(TQualifier&);
bool acceptType(TType&);
bool acceptType(TType&, TIntermNode*& nodeList);
bool acceptTemplateVecMatBasicType(TBasicType&);
bool acceptVectorTemplateType(TType&);
bool acceptMatrixTemplateType(TType&);
bool acceptTessellationDeclType(TBuiltInVariable&);
bool acceptTessellationPatchTemplateType(TType&);
bool acceptStreamOutTemplateType(TType&, TLayoutGeometry&);
bool acceptOutputPrimitiveGeometry(TLayoutGeometry&);
bool acceptAnnotations(TQualifier&);
bool acceptSamplerTypeDX9(TType &);
bool acceptSamplerType(TType&);
bool acceptTextureType(TType&);
bool acceptSubpassInputType(TType&);
bool acceptStructBufferType(TType&);
bool acceptTextureBufferType(TType&);
bool acceptConstantBufferType(TType&);
bool acceptStruct(TType&, TIntermNode*& nodeList);
bool acceptStructDeclarationList(TTypeList*&, TIntermNode*& nodeList, TVector<TFunctionDeclarator>&);
bool acceptMemberFunctionDefinition(TIntermNode*& nodeList, const TType&, TString& memberName,
TFunctionDeclarator&);
bool acceptFunctionParameters(TFunction&);
bool acceptParameterDeclaration(TFunction&);
bool acceptFunctionDefinition(TFunctionDeclarator&, TIntermNode*& nodeList, TVector<HlslToken>* deferredTokens);
bool acceptFunctionBody(TFunctionDeclarator& declarator, TIntermNode*& nodeList);
bool acceptParenExpression(TIntermTyped*&);
bool acceptExpression(TIntermTyped*&);
bool acceptInitializer(TIntermTyped*&);
bool acceptAssignmentExpression(TIntermTyped*&);
bool acceptConditionalExpression(TIntermTyped*&);
bool acceptBinaryExpression(TIntermTyped*&, PrecedenceLevel);
bool acceptUnaryExpression(TIntermTyped*&);
bool acceptPostfixExpression(TIntermTyped*&);
bool acceptConstructor(TIntermTyped*&);
bool acceptFunctionCall(const TSourceLoc&, TString& name, TIntermTyped*&, TIntermTyped* objectBase);
bool acceptArguments(TFunction*, TIntermTyped*&);
bool acceptLiteral(TIntermTyped*&);
bool acceptSimpleStatement(TIntermNode*&);
bool acceptCompoundStatement(TIntermNode*&);
bool acceptScopedStatement(TIntermNode*&);
bool acceptScopedCompoundStatement(TIntermNode*&);
bool acceptStatement(TIntermNode*&);
bool acceptNestedStatement(TIntermNode*&);
void acceptAttributes(TAttributes&);
bool acceptSelectionStatement(TIntermNode*&, const TAttributes&);
bool acceptSwitchStatement(TIntermNode*&, const TAttributes&);
bool acceptIterationStatement(TIntermNode*&, const TAttributes&);
bool acceptJumpStatement(TIntermNode*&);
bool acceptCaseLabel(TIntermNode*&);
bool acceptDefaultLabel(TIntermNode*&);
void acceptArraySpecifier(TArraySizes*&);
bool acceptPostDecls(TQualifier&);
bool acceptDefaultParameterDeclaration(const TType&, TIntermTyped*&);
bool captureBlockTokens(TVector<HlslToken>& tokens);
const char* getTypeString(EHlslTokenClass tokenClass) const;
HlslParseContext& parseContext; // state of parsing and helper functions for building the intermediate
TIntermediate& intermediate; // the final product, the intermediate representation, includes the AST
bool typeIdentifiers; // shader uses some types as identifiers
TIntermNode* unitNode;
};
} // end namespace glslang
#endif // HLSLGRAMMAR_H_